Buckle.



PATENTED APR. 21, 1908. .0. A. PATTERSON.

BUCKLE. APPLICATION FILED MAR. 20. 1907.

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CHARLES A. PATTERSON, OF PORTLAND; OREGON.

BUCKLE Specification of Letters Patent.

Patented April 21, 1908.

Application filed March 20, 1907.[Seria1 No. 363,348.

connections, an adapted in use to firmly se-- cure strap-members in attached relation.

The main object of the invention is the production of a oneiece buckle so constructed that an increase strain onthestraps con- 'nected thereby serves to more firmly seat the buckle place, the bindin action being directed-1n a line at anang e to the line of strain and being directly proportionate to y the amount of strain.

The invention in the preferred embodiment of details will be described in the following specification, reference.bein had to,

the accompanying drawings, in Whic Figure 1 is a perspective of m 1m roved buc e. Fig. 2 1s aperspectiveo my uckle shown as connecting twostrap members, and 3 is a longitudinal central section of the same. Fig. 4 is an enlarged central, longitudinal section, partly broken away, of the improved buckle.

Referring now to the drawings, wherein similar reference numerals refer to like parts throughout the several views, my im roved buckle comprises two similar side ars 1, maintained in spaced parallel relation by a connector-bar 2 at one end,.and by a clamping plate 3 at the op 'ips ite end, said plate being of a preciable t ickness at its forward edge to orm the binding. face 5, the latter lyin in the sameplane as the forward edges 5 0% the side. bars '1. The side bars are spaced a distance somewhat in excess of the i width of the stra for which the particular buckle is designe and preferably gradually increase in wldth from the connector-bar 2 to' the clamping plate 3. The connector-bar 2 is by preference of oval shape in cross section, and is centrally formed with a relatively rearwardly-extending rojection 4, preferably semi-circular in p an and of gradually decreasing thickness fromits connection with the bar toward its free edge. The important feature in connection with the projection 4 is that it is extended in a plane passing throu h the longitudinal median line of both.

side bars 1, this particular construction hav-' ing an important function in the use of the buckle, as will presently be set forth. The clamping plate 3, joining one end of the side bars, is in such relative position to said bars that its inner face lies in a plane disposed at other than a right angle to the longitudinal axis of either side bar. This inclination has a particular purpose in the use of the buckle, and is arranged downwardly and forwardly from the highest point of the buckle when in o erative position, as clearly shown in Fig. 3.

e face 5 of the clamping plate 3 and hereinafter termed the binding face, lies in a plane at an angle other than a right angle to the plane of the inner face of the clam ing late and, as before stated, in the same p ane as the forward edges 5 of the side bars 1. The clamping plate is provided with a ton ue or stud 6, arran ed at a direct right an e to the inner face 0 said late and prefera 1y disposed closer to the inding face 5 than to the rear ed e of the clamping plate. The stud is of en 'cient length to extend through the 006 crating stra member and is rounded and re uced at the gee end to facilitate its connection with the strap openings.

In use, one strap member 7 is looped around the connector-bar and secured by stitching or otherwise, the rojection 4 extending rearwardly from the ar between the. strap plies or layers. The second or connected' strap member .8, formed with the usual openings 9 for the reception of the stud 6, is passed between the side bars and beneath the clamping plate 3, the stud being entered in the desired opening 9, In this position strain upon either strap member causes the projection 4 to be slightly tilted with the effect to force the clamping late into closer contactwith the strap member 8. This result will be fully obvious when it is understood that the inner face of the clamping plate normally rests fiat upon the upper stra and hence the projection 4, when the hue le is in use, lies in such relative position to the lower strap that strain on the strap members tends to aline the projection wit the lower strap and therefore tilt or bind the clamping plate upon the upper strap.

Under excessive strain the clamping plate will be so inclined with relation to the 11 )per strap as to cause the binding face 5 to ear directly thereon, as shown in Fig. 3. If said face, which is of a preciable width, were disposed at right ang es to the plate 3, the effect of strain would be to cause the edgeof the face to cut into and damage the strap, but by my arrangement and construction the come paratively broad surface of the face is presented to the strap and cutting thereof avoided.

The buckle is by preference constructed of a single piece of material and in use serves to secure two strap members in such manner that strain thereon tends to more firmly seat the buckle in place.

Having thus described my invention, What I claim as new and desire to secure by Letters Patent, is

A oneiece buckle comprising spaced side bars, a c amping plate having an inner fiat face and an outer curved face, connecting the side bars at one end, the inner face of said plate lying at an angle to the line of normal strain, a stud projecting at direct right angles to said inner face of the clainping'plate, the

forward edge of the clamping plate being of appreciable width to form a binding face and lying in a plane coincident with the plane of the forward edges of tlye side bars and at an angle to the plane of the inner face of tho clam ing plate, a connector-bar joining the side ars at the op osite end, and an. approx- .imately semicircu ar projection extending rearwardly from the connector-bar 111 a plane CHARLES ii. PATTERSON Vitnesses:

C. W. HonsoN, M. C. BROWNE. 

